The 2, 3, 4, 5, 6, A, C, D, E, F, J, M, N and R lines will be affected by service changes this weekend.
Lines 3,4,6,A,C,D,E,F and Q will be affected by service changes from Friday night until Monday morning.
Riders Alliance members will dress in retro clothing to call attention to cars in service since 1964.
MTV assured DNAinfo the flier was not theirs.
The cable was taken from subway tracks near Howard Beach, crippling service, the MTA said.
The 2, 3, 4, 5, 6, A, C, D, E, F, J, L, M, Q, R and Rockaway Shuttle will all be impacted.
Riders Alliance will ask commuters for input and support for a petition to the MTA.
The victim's condition was not immediately clear, and B, C, A and D lines were affected, the FDNY said.
The 6, 7, A, C, D, E, F, J, M, N, Q and R trains are slated for service disruptions this weekend.
Keyshawn Brown, 16, "knowingly placed" a metal rail sign on the tracks at Nostrand Avenue, police said.
Video shows a small explosion and sparks as a C train pulls into the Nostrand Avenue station.
Officers observed Corey Johnson moving between multiple cars, NYPD said.
Shawn Howard of the Bronx attacked three people on the A and C trains, police said.
The man was taken to Kings County Hospital in serious but non-life threatening condition.
The 1, 2, 3, 5, 6, 7, A, C, D, E, F and 42nd Street Shuttle will all be affected.
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